This paper describes the constituent, the structure and the physical characteristics of fly ash which might have favourable influence on "Pozzolanic reaction".
本文阐述了粉煤灰的组分、结构及物理性质，因为它们对粉煤灰的“火山灰反应”产生有益的作用。
The structure and nutrition constituent of maize kernel were introduced and its processing approach, procedure and processing products were sketched.
介绍了玉米籽粒的结构、营养组成，并对玉米的加工途径、加工过程及加工产品等进行了简述。
Its operating principle, structure constituent, circuit design and mechanical layout are described.
叙述了该装置的工作原理、结构组成，电路设计及机械设计。
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